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Pyromellitic Dianhydride(PMAD)CAS No.: 89-32-7

Fine Chemistry

Pyromellitic Dianhydride(PMAD)CAS No.: 89-32-7

Pyromellitic dianhydride, called homogeneous anhydride, is pure white or yellowish crystals. When exposed to humid air, it rapidly absorbs moisture from the air and hydrolyzes to pyromellitic acid.

    Produtc Advantages

    he product dissolves in dimethyl sulfoxide, dimethylformamide, and acetone among other organic solvents, but it remains insoluble in ether, chloroform, and benzene.

     

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    Pyromellitic Dianhydride (PMDA) is the raw material for the production of polyimide film (PI film), polyimide resin, high temperature electrical insulation paint, high temperature coating, also for the production of epoxy curing agent and crosslinking agent of polyester matting resin, powder coating auxiliary and so on.

    Series Item Specification
    1 Appearance White or slight yellow crystalline particles
    2 Purity % 99.5 Min
    3 Melting Point ℃ 284 Min
    4 Free Acid % 0.5 Max
    5 Particle Size On customer demand
    These data are given as an indication of typical values and not as exact specifications.

    Packed with aluminum foil bag or 135kg aluminum foil paper drum.